At the family's home in Humboldt Park, everyone sings "Happy Birthday" to Jacques Williams on his 18th birthday. Also pictured is Williams's brother Jerryon Stevens, a former straight-A student who was arrested last summer for selling heroin. This spring, one of his best friends was gunned down. His grandmother and mother have impressed upon him the need to change. “I can change, but I don’t know when. I don’t know what’s going to happen,” he said.